Abstract: A system for flashing a plurality of light sources, such as the headlights, taillights, brake lights and/or turn signal indicators of an automotive vehicle which includes a plurality of light switching circuits wherein one light switching circuit is associated with each light source. Each light switching circuit is responsive to a predetermined input signal to switch its associated light source between an on and an off condition. A microprocessor has a plurality of output signal lines wherein one output line is electrically connected with each light switching circuit. The microprocessor is preprogrammed to generate the predetermined input signals to the light switching circuits on its output signal lines in a predetermined sequence.